*{
    margin: 0 ;
    padding: 0;
    box-sizing: border-box;
}
a{
    text-decoration: none;
}
li{
    list-style: none;
}
.container1{
    width: 1450px;
    margin:0 auto;
}

/*导航*/
.zhong{
    margin-bottom: 0px;
}
.zhong li{
    float: left;
    width: 70px;
    height: 64px;
    text-align: center;
    line-height:64px;
    margin-right: 10px;
}
.zhong li a{
    color:#fff;
}
.zhong li:hover a{
    text-decoration: none;
    color:#fff;
}
.zhong li:hover{
    background:#AD0000;
}
.zhong li a i{
    width: 70px;
    height: 64px;
    background:url("../img/images/home.jpg");
    display: inline-block;
}
.zhong li:hover a i{
    width: 70px;
    height: 64px;
    background:url("../img/images/home_h.jpg");
    display: inline-block;
}
.navbar-nav1 ul{
    margin-bottom: 0px;
    margin-left: 50px;
}
.navbar-nav1{
    float:right!important;
}
.navbar-nav1 ul li{
    float: left;
}
.imghe{
    float: left;
}
.imghe .img1{
    margin-left: 26px;
}
nav{
    background:#000!important;
    position: fixed;
    width:100%;
    z-index: 100;
}
nav .bg-light{
    padding: 0px!important;
    background:#000!important;
}
.navbar-nav1 ul li a{
    color:#fff;
    line-height:64px;
}
.navbar-nav1 ul li{
    margin-right: 10px;
}
.navbar-nav1 ul li a:hover{
    text-decoration: none;
}

/*主体*/
section::after{
    display: table;
    clear: both;
    content: "";
}
.section_top>img{
    float: left;
    width: 715px;
}
.sect_zh{
    float: left;
    position: relative;
}
.sect_zh>img{
    width: 735px;
}
.section_top{
    float: left;
    margin-top: 120px;
}
.neitu{
    position: absolute;
    top: 13.89%;
}
.neitu2{
    position: absolute;
    left: -2%;
    top: 37.3%;
}
.neitu3{
    position: absolute;
    left:3%;
    top: 73.81%;
}
.neitu4{
    position: absolute;
    left: 27%;
    top: 73.81%;
}

.section_bottom{
    display: table;
    clear: both;
    content: "";

}
.section_bottom{
    font-size: 42px;
    width: 100%;
    position: relative;
    top:100px;
    border-top: dashed 1px #000;
    margin-bottom:180px;
}
.section_bottom>span{
    display: block;
    position: absolute;
    top:-35px;
    left:41%;
    background: #fff;
    text-align: center;
    padding-left: 10px;
    padding-right: 10px;
    margin-bottom: 40px;
}

.section_bottom1 ul{
    display: flex;
    flex-wrap: wrap;
}
.section_bottom1 ul li img{
    width: 470px;
    height:282px;
}
.section_bottom1 ul li{
    margin-bottom: 20px;
    margin-right: 20px;
}
.section_bottom1{
    display: table;
    clear: both;
    content: "";
}
.section_bottom1 .li3,
.section_bottom1 .li6,
.section_bottom1 .li9,
.section_bottom1 .li12,
.section_bottom1 .li15,
.section_bottom1 .li18,
.section_bottom1 .li21{
    margin-right: 0;
}

/*移动*/
.section_bottom1 ul li{
    position:relative;
}
.yidong{
    position: absolute;
    bottom: 0px;
    width: 470px;
    height: 72px;
    color:#fff;
    padding: 15px 20px 15px 20px;
    background:rgba(0,0,0,.5);
    transition-duration: .3s;
    transition-timing-function: linear;
    overflow: hidden;
}
.yidong b{
    background: url("");
    width: 153px;
    height:53px;
    display:block;
}
.section_bottom1 ul li :hover.yidong:hover{
    width: 380px;
    height:220px;
    text-align: center;
    font-size: 20px;
    margin-left: 45px;
    margin-bottom:30px;
    background:rgba(80,113,175,.8);
}
.yidong:hover b{
    background: url("../img/images/grow_btn01 .png");
    width: 153px;
    height:53px;
    margin-top: 40px;
    margin-left: 90px;
    display:block;
}


/*页脚*/
.footer1::after{
    display: table;
    content: "";
    clear: both;
}
footer{
    background:#000;
}
.footer-box{
    width: 906px;
    margin: 0 auto;
    padding-top: 5px;
    padding-bottom:10px;
}
.footer1 ul li{
    float: left;
    margin-right:20px;
}
.footer1 ul li a{
    font-size: 12px;
    color:#fff;
}
.footer1 span{
    float: right;
    font-size: 12px;
    color:#fff;
}
.footer2{
    margin-top: 20px;
    margin-bottom: 10px;
}
.footer2 p{
    font-size: 13px;
    color:#696969;
}
.footer2 p a{
    color:#696969;
    text-decoration:underline;
}
.footer3{
    text-align: center;
}
.footer3 p{
    font-size: 12px;
    color:#696969;
    margin-bottom: 5px;
}

/*响应式*/
@media (max-width: 600px){
    .container1{
        width: 100%;
    }
    .section_top {
        margin-top: 64px;
    }
    .zhong{
        display: none;
    }
    .navbar-light .navbar-brand{
        width: 140px;
        margin-right: 0;
    }
    .navbar-nav1{
        float:inherit!important;
        /*display: none;*/
    }
    .navbar-nav1 .li1{
        display: block;
    }
    .navbar-nav1 img{
        display: none;
    }
    .bujv{
        width: 164px;
    }
    .section_top{
        width: 100%;
    }
    .section_top>img{
        width: 100%;
    }
    .sect_zh{
        width: 100%;
    }
    .sect_zh>img{
        width: 100%;
    }
    .neitu img{
       width: 60%;
    }
    .neitu2 img{
        width:53%;
    }
    .neitu3 img{
        width:42%;
    }
    .neitu4 img{
        width:42%;
    }
    .section_bottom{
        margin-bottom:245px;
    }
    .section_bottom1{
        width: 100%;
    }
    .section_bottom1 img{
        width: 100%;
    }
    .section_bottom1 ul li{
        width:100%;
        margin-right:0;
    }
    .section_bottom1 ul li img{
        width: inherit;
        height: inherit;
    }
    .section_bottom>span{
        left:19%;
    }
    .section_bottom{
        margin-bottom: 180px;
    }

    .yidong{
        width:87%;
        margin: 0 auto;
        left: 6%;
        bottom: 20px;
        height:83%;
        text-align: center;
    }
    .yidong b{
        background: url("../img/images/grow_btn01 .png");
        margin-left: 77px;
        margin-top: 35px;
    }

    footer{
        text-align: center;
    }
    .footer-box{
        width: 100%;
    }
    .footer1{
        text-align: center;
    }
    .footer1 span {
         float:inherit;
        margin-top: 28px;
        display: inline-block;
    }
    .footer1 ul li a {
        font-size: 10px;
        margin-right: -4px;
    }
    .footer1 ul{
        display: table;
        content: "";
        clear: both;
        margin: 0 auto;
    }

}
@media ( max-width:375px ) and (min-width:330px){
    .section_bottom span{
        left:14%!important;
    }
    .section_bottom{
        margin-bottom: 180px;
    }
    .yidong b{
        background: url("../img/images/grow_btn01 .png");
        margin-left:63px;
        margin-top: 15px;
    }
}
@media ( max-width:320px ) and (min-width:300px){
    .section_bottom span{
        left:7%!important;
    }
    .section_bottom{
        margin-bottom: 190px;
    }
    .yidong b{
        background: url("../img/images/grow_btn01 .png");
        margin-left:35px;
        margin-top: 15px;
    }
}